公开(公告)号：US20230250281A1

公开(公告)日：2023-08-10

申请号：US18012176

申请日：2021-06-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Jun YASUMOTO ,  Rihoko WATANABE ,  Teppei WASHIO ,  Hiroharu INOUE

IPC: C08L79/08 ,  C08J5/24 ,  C08J7/04 ,  H05K1/03

CPC classification number: C08L79/08 ,  C08J5/246 ,  C08J7/0427 ,  H05K1/0353 ,  C08J2309/06 ,  C08J2333/08 ,  C08J2363/00 ,  C08J2379/08 ,  C08L2203/16 ,  C08L2205/035

Abstract: A resin composition contains a curable resin. A minimum value (Min) of loss tangent (tanδ = E″/E′) of a cured product of the resin composition is equal to or greater than 0.04. The loss tangent is a ratio of a loss modulus (E″) of the cured product of the resin composition to a storage modulus (E′) thereof. The loss modulus (E″), the storage modulus (E′), and the loss tangent (tanδ = E″/E′) are obtained by dynamic mechanical analysis at a temperature equal to or higher than 100° C. and equal to or lower than 200° C.

公开(公告)号：US20210061996A1

公开(公告)日：2021-03-04

申请号：US16957232

申请日：2018-10-16

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroaki UMEHARA ,  Fumito SUZUKI ,  Jun YASUMOTO ,  Hiroharu INOUE

IPC: C08L71/12 ,  C08K5/00 ,  C08K5/3492 ,  C08J5/24

Abstract: One aspect of the present application relates to a polyphenylene ether resin composition including a modified polyphenylene ether compound (A) that is terminally modified with a substituent having a carbon-carbon unsaturated double bond, and a crosslinking-type curing agent (B) having two or more carbon-carbon unsaturated double bonds in each molecule, the modified polyphenylene ether compound (A) including a modified polyphenylene ether compound (A-1) having a specific structure, and a modified polyphenylene ether compound (A-2) having a specific structure.

公开(公告)号：US20230257581A1

公开(公告)日：2023-08-17

申请号：US18012161

申请日：2021-06-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Jun YASUMOTO ,  Rihoko WATANABE ,  Teppei WASHIO ,  Hiroharu INOUE

IPC: C08L79/08 ,  C08K5/521 ,  C08L25/08 ,  C08J5/24

CPC classification number: C08L79/085 ,  C08K5/521 ,  C08L25/08 ,  C08J5/24 ,  C08L2203/16 ,  C08L2203/20 ,  C08L2201/02

Abstract: A resin composition contains a maleimide compound (A) and a phosphorus-containing compound (B). The maleimide compound (A) includes a first maleimide compound (A1) having an alkyl group, of which a carbon number is equal to or greater than six, and/or an alkylene group, of which a carbon number is equal to or greater than six. The phosphorus-containing compound (B) includes a phosphorus-containing compound (B1) having a structure expressed by the following formula (b1), where s indicates an integer falling within a range from 1 to 10, Z indicates either an arylene group or an ester bond expressed by the following formula (b1.1), R1 to R3 each independently indicate either a hydrogen atom or a monovalent organic group, and * indicates a bond.

公开(公告)号：US20240084133A1

公开(公告)日：2024-03-14

申请号：US18517442

申请日：2023-11-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroaki UMEHARA ,  Fumito SUZUKI ,  Jun YASUMOTO ,  Hiroharu INOUE

IPC: C08L71/12 ,  C08J5/24 ,  C08K5/00 ,  C08K5/3492

CPC classification number: C08L71/126 ,  C08J5/244 ,  C08K5/0025 ,  C08K5/34924 ,  C08L2203/16 ,  C08L2203/202 ,  C08L2205/025 ,  C08L2312/00

Abstract: One aspect of the present application relates to a polyphenylene ether resin composition including a modified polyphenylene ether compound (A) that is terminally modified with a substituent having a carbon-carbon unsaturated double bond, and a crosslinking-type curing agent (B) having two or more carbon-carbon unsaturated double bonds in each molecule, the modified polyphenylene ether compound (A) including a modified polyphenylene ether compound (A-1) having a specific structure, and a modified polyphenylene ether compound (A-2) having a specific structure.

公开(公告)号：US20230250282A1

公开(公告)日：2023-08-10

申请号：US18012184

申请日：2021-06-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Rihoko WATANABE ,  Jun YASUMOTO ,  Hiroharu INOUE

IPC: C08L79/08 ,  C08K5/5313 ,  C08K5/5399 ,  C08J5/24 ,  C08J7/04 ,  H05K1/03

CPC classification number: C08L79/08 ,  C08K5/5313 ,  C08K5/5399 ,  C08J5/246 ,  C08J7/0427 ,  H05K1/0353 ,  C08L2205/03 ,  C08L2203/16 ,  C08J2309/06 ,  C08J2363/00 ,  C08J2379/08

Abstract: A resin composition contains a maleimide compound (A), a phosphine oxide compound (B), and an epoxy compound (C). The maleimide compound (A) includes a maleimide compound (A1) having an alkyl group, of which a carbon number is equal to or greater than six, and/or an alkylene group, of which a carbon number is equal to or greater than six. The phosphine oxide compound (B) has a structure expressed by the following formula (b0), where X is a monovalent or divalent hydrocarbon group having at least one aromatic ring or an alkylene group and n is either 1 or 2.

公开(公告)号：US20200181403A1

公开(公告)日：2020-06-11

申请号：US16641928

申请日：2018-06-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Fumito SUZUKI ,  Hiroaki UMEHARA ,  Jun YASUMOTO ,  Hiroharu INOUE

IPC: C08L71/12 ,  C08K5/5399 ,  C08J5/24 ,  B32B15/08 ,  H05K1/03

Abstract: The present application relates to a polyphenylene ether resin composition containing (A) a modified polyphenylene ether compound having a terminal modified with a substituent having an unsaturated carbon-carbon double bond, (B) a crosslinking curing agent having an unsaturated carbon-carbon double bond in the molecule, and (C) a flame retardant. The flame retardant (C) contains at least a modified cyclic phenoxy phosphazene compound represented by formula (I).